We all desperately feel our need for salvation.
God's goal is our salvation, and everything else, including miracles, aims toward that.
Salvation only comes through Jesus Christ. Believing other religions are the same as Christianity, as well as believing that we can save ourselves or that politics can save us, all violate this principle.
Paul says that we are saved by faith and John says we are saved by believing in Jesus. Yes. But believing in Jesus demands our entire life.
Jesus became like us so that we could become like him.